摘要：

在电子商务中，现有信任模型的惩罚机制只是对交易失败次数进行惩罚，忽略了交易金额的重要性。针对该问题，提出一种惩罚模型，同时考虑交易的失败次数和失败金额，从而达到过滤恶意节点欺骗惩罚机制的目的。对信任机制的有效性和抗攻击性进行实验验证。结果表明，所提出的信任机制优于其他现有的方法，能够有效地应用于P2P电子商务系统中。

关键词: 时间因子, 惩罚因子, 声望

Abstract:

In E-commerce, the current punishment mechanisms of the trust models only aim at the false times to punish and ignore the importance of monetary value in transaction. This paper proposes a modified punishment mechanism based on E-commerce in P2P networks. The times and money of unsuccessful transactions are taken into account in this model, so that the deceiving behavior of malicious nodes aiming at bypassing penalty mechanism is flitted. The validity and robustness of the model are testified. Experimental results show that the trust model is better than other extant ones and can be efficaciously deployed in the E-commerce system.

Key words: time factor, penalty factor, reputation

中图分类号: 

• TP393.08